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Validate Incoming Value in MVC

Create Filter


 public sealed class ValidateOnlyIncomingValuesAttribute : ActionFilterAttribute
    {
        public override void OnActionExecuting(ActionExecutingContext filterContext)//OnActionExecuted
        {
            var modelState = filterContext.Controller.ViewData.ModelState;
            var valueProvider = filterContext.Controller.ValueProvider;

            var keysWithNotIncommingValue = modelState.Keys.Where(x => !valueProvider.ContainsPrefix(x));
            foreach (var key in keysWithNotIncommingValue)
            {
                modelState[key].Errors.Clear();
            }
        }
    }

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